| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % IIIII N N L IIIII N N EEEEE % |
| % I NN N L I NN N E % |
| % I N N N L I N N N EEE % |
| % I N NN L I N NN E % |
| % IIIII N N LLLLL IIIII N N EEEEE % |
| % % |
| % % |
| % Read Inline Images % |
| % % |
| % Software Design % |
| % John Cristy % |
| % July 1992 % |
| % % |
| % % |
| % Copyright 1999-2013 ImageMagick Studio LLC, a non-profit organization % |
| % dedicated to making software imaging solutions freely available. % |
| % % |
| % You may not use this file except in compliance with the License. You may % |
| % obtain a copy of the License at % |
| % % |
| % http://www.imagemagick.org/script/license.php % |
| % % |
| % Unless required by applicable law or agreed to in writing, software % |
| % distributed under the License is distributed on an "AS IS" BASIS, % |
| % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. % |
| % See the License for the specific language governing permissions and % |
| % limitations under the License. % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % |
| */ |
| |
| /* |
| Include declarations. |
| */ |
| #include "MagickCore/studio.h" |
| #include "MagickCore/blob.h" |
| #include "MagickCore/blob-private.h" |
| #include "MagickCore/client.h" |
| #include "MagickCore/constitute.h" |
| #include "MagickCore/display.h" |
| #include "MagickCore/exception.h" |
| #include "MagickCore/exception-private.h" |
| #include "MagickCore/image.h" |
| #include "MagickCore/image-private.h" |
| #include "MagickCore/list.h" |
| #include "MagickCore/magick.h" |
| #include "MagickCore/memory_.h" |
| #include "MagickCore/option.h" |
| #include "MagickCore/quantum-private.h" |
| #include "MagickCore/static.h" |
| #include "MagickCore/string_.h" |
| #include "MagickCore/module.h" |
| #include "MagickCore/utility.h" |
| #include "MagickCore/xwindow.h" |
| #include "MagickCore/xwindow-private.h" |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % R e a d I N L I N E I m a g e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % ReadINLINEImage() reads base64-encoded inlines images. |
| % |
| % The format of the ReadINLINEImage method is: |
| % |
| % Image *ReadINLINEImage(const ImageInfo *image_info, |
| % ExceptionInfo *exception) |
| % |
| % A description of each parameter follows: |
| % |
| % o image_info: the image info. |
| % |
| % o exception: return any errors or warnings in this structure. |
| % |
| */ |
| |
| static inline size_t MagickMin(const size_t x,const size_t y) |
| { |
| if (x < y) |
| return(x); |
| return(y); |
| } |
| |
| static Image *ReadINLINEImage(const ImageInfo *image_info, |
| ExceptionInfo *exception) |
| { |
| Image |
| *image; |
| |
| MagickBooleanType |
| status; |
| |
| register size_t |
| i; |
| |
| size_t |
| quantum; |
| |
| ssize_t |
| count; |
| |
| unsigned char |
| *inline_image; |
| |
| /* |
| Open image file. |
| */ |
| assert(image_info != (const ImageInfo *) NULL); |
| assert(image_info->signature == MagickSignature); |
| if (image_info->debug != MagickFalse) |
| (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", |
| image_info->filename); |
| assert(exception != (ExceptionInfo *) NULL); |
| assert(exception->signature == MagickSignature); |
| if (LocaleNCompare(image_info->filename,"data:",5) == 0) |
| return(ReadInlineImage(image_info,image_info->filename,exception)); |
| image=AcquireImage(image_info,exception); |
| status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); |
| if (status == MagickFalse) |
| { |
| image=DestroyImageList(image); |
| return((Image *) NULL); |
| } |
| quantum=MagickMin((size_t) GetBlobSize(image),MagickMaxBufferExtent); |
| inline_image=(unsigned char *) AcquireQuantumMemory(quantum, |
| sizeof(*inline_image)); |
| count=0; |
| for (i=0; inline_image != (unsigned char *) NULL; i+=count) |
| { |
| count=(ssize_t) ReadBlob(image,quantum,inline_image+i); |
| if (count <= 0) |
| { |
| count=0; |
| if (errno != EINTR) |
| break; |
| } |
| if (~((size_t) i) < (quantum+1)) |
| { |
| inline_image=(unsigned char *) RelinquishMagickMemory(inline_image); |
| break; |
| } |
| inline_image=(unsigned char *) ResizeQuantumMemory(inline_image,i+quantum+1, |
| sizeof(*inline_image)); |
| } |
| if (inline_image == (unsigned char *) NULL) |
| { |
| (void) ThrowMagickException(exception,GetMagickModule(), |
| ResourceLimitError,"MemoryAllocationFailed","`%s'",image->filename); |
| return((Image *) NULL); |
| } |
| inline_image[i+count]='\0'; |
| image=DestroyImageList(image); |
| image=ReadInlineImage(image_info,(char *) inline_image,exception); |
| inline_image=(unsigned char *) RelinquishMagickMemory(inline_image); |
| return(image); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % R e g i s t e r I N L I N E I m a g e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % RegisterINLINEImage() adds attributes for the INLINE image format to |
| % the list of supported formats. The attributes include the image format |
| % tag, a method to read and/or write the format, whether the format |
| % supports the saving of more than one frame to the same file or blob, |
| % whether the format supports native in-memory I/O, and a brief |
| % description of the format. |
| % |
| % The format of the RegisterINLINEImage method is: |
| % |
| % size_t RegisterINLINEImage(void) |
| % |
| */ |
| ModuleExport size_t RegisterINLINEImage(void) |
| { |
| MagickInfo |
| *entry; |
| |
| entry=SetMagickInfo("INLINE"); |
| entry->decoder=(DecodeImageHandler *) ReadINLINEImage; |
| entry->format_type=ImplicitFormatType; |
| entry->description=ConstantString("Base64-encoded inline images"); |
| entry->module=ConstantString("INLINE"); |
| (void) RegisterMagickInfo(entry); |
| return(MagickImageCoderSignature); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % U n r e g i s t e r I N L I N E I m a g e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % UnregisterINLINEImage() removes format registrations made by the |
| % INLINE module from the list of supported formats. |
| % |
| % The format of the UnregisterINLINEImage method is: |
| % |
| % UnregisterINLINEImage(void) |
| % |
| */ |
| ModuleExport void UnregisterINLINEImage(void) |
| { |
| (void) UnregisterMagickInfo("INLINE"); |
| } |